Transporting and dumping vehicle



Marc 1939- G. R. DEMPSTER 2,150,821

TRANSPORTING AND DUMPING VEHICLE Filed Nov. 20, 19s"! 2 Sheets-Sheet 1March 14, 1939. G. R. DEMPSTER 2,150,821

TRANSPORTING AND DUMPING- VEHICLE Filed Nov. 20, 195'? 2 Sheets-Sheet 2A, grwcm'm Patented Mar. 14, 1939 g V 2,150,821

UNITED STATES PATENT OFF-ICE rnnrzsroarnvo ix fitmme vanrcw George R.Dempster, Knoxville, Tenn. Application November-'20, 1937, Serial No.115,714

3 Claims. (01. 214-75) This invention relates to transporting and A rod4 is passed through the upper ends of the dumping vehicles provided witha container for bars 2-2 and 3-2 with the ends of the rod prothe load tobe transported. In many cases it is jecting outward beyond the bars 2-2,and on desirable tosupply a number of containers to the said projectingends of the rod 4 are mounted 5 end that while one container is beingtransported sheaves 5-5. Mounted in suitable bearings near 5 to thepoint of delivery, others may'be filled and the base of the track orway, composed of the ready for transportation when the carrying vebars2-2, is a shaft 8 extending across the hicle returns. With this end inview it is comvehicle and having drums l-I secured to the men in the artto mount on a'vehicle, such as a outer ends thereof -in a substantiallyvertical 1o truck, a track or way provided with suitable position underthe sheaves 5-5. On the shaft in means for raising and lowering thecontainer, for there is also a drum 8 approximately midway bedumping-thetransporting container at the point tween the rails 2-2 of the track orway, around of delivery, and for setting the container down which drumthere is wound a cable 9 in operative and releasing it from transportingmeans at' the relation with a power device, whereby the shaft i pointwhere it is to be loaded. In many cases, may be rotated. As here shown,the power de- 15 such as in quarries, the material to be loaded intovice is in the form of a cylinder ill in which plays the container is ofvery substantial weight, and a' piston rod ll carrying a sheave l2,around much labor is required to lift the stone and which the cable 9passes from a fixed point l3 to place the same in the container. In manycases nthe drum 8. Cables ll-ll are secured to the 0 the container has adepth of approximately three drums 'l-I, passed upward over the sheaves5 Q9 feet, and the labor required to lift and place the and are providedwith any suitable means, here load in the container adds to the time andcost shown as hoolcs'li-li, for engagement with the of loading thecontainer. container. During the operation of piston rod ll, One of theobjects of the present invention is the shaft 6 is revolved so as toeither wind the to provide a transporting vehicle of the usual or cable9 thereon or permit it to be unwound there- 0;, any suitable type, andsupply the same with a from, to the end that the hooks lS-IS may becontainer which can be readily loaded at a deraised or lowered asdesired. Control of the apcreased expense, in time and labor, and whichplication of power to the cylinder III is effected can be readily dumpedby the operator of the from the driver's seat.

vehicle, the container being automatically re-. The construction thusfar described is substano turnedtotransportingposition after the dumpingtially that shown, described and claimed in my operation. copendingU.'S. application Serial No. 120,993 The invention may be embodied in avariety of filed January 16, 1937, now Patent No. 2,121,121, forms, oneof which for the purpose of illustrating granted June 21, 1938, andwhile such specific the invention is shown in the accompanyingconstruction is preferable, the present invention drawings, in which isnot limited thereto, since any form of vehicle, Fig. 1 is a perspectiveview of the rear ofthe any suitable track or way, and any suitable meansvehicle, with the loaded container in transporting for raising andlowering the container on said position; track or way are within thepurview of the present 40 Fig. 2 is a rear elevation of the container;and invention. N

Fig. 3 is a side elevation in section, showing the Referring now to Fig.1, i6 is acontainer'prefcontainer in full lines in transportingposition, in erably made of heavy sheet iron, and has a dotted lines indumping position and in dot and back wall l1, two end walls i8--l9 and abottom dash lines in the position which it occupies when l9, all ofwhich parts as here shown are rigidly resting on the ground. connectedtogether. With this construction it 45 Referring to the drawings, inwhich like refwill be seen that the container has anopen top erencenumerals indicate like parts throughout and an open front. By front, ashere used, is the several views, l-! are side rails on any suitmeant theside of the container through which able vehicle, such as a truck, and2-2 are bars, the dumping-action occurs, without reference preferablymade'of angle iron, extending upward to which is the front or backof thevehicle on 5 from the rear end of the rails i-l, and as here which it ismounted. Preferably the bottom I! shown, in a slightly inclineddirection; 3-3 are of the container is reenforced by longitudinallybrace bars, also preferably of angle iron, secured extending ribs l9,and the upper portion of the at their lower ends to the rails I andextending back wall of the container is reenforced by a upward to nearthe upper portion of thebars 2-2. longitudinally extending rib l'l'. Atthe rear of 5 position shown in -said figure.

the container is provided means whereby it may be supported by asuitable catch 20, when in its elevated position on the track or wayduring transportation; as clearly shown in Figs. 1 and 3. This element,as here shown, takes the form of a bail 2| which extends from a pointclosely adjacent to the lower rear edge of the container to a pointabove the top of. the back wall of the container. The ball piece 2| hasa rod 22 passing through eyes or openings provided in the lower ends2l'.-2l' of the bail. To this rod 22 the container is hinged by suitablehinge connections ii, to the end that the container may swing bodilydownward around the pin 22 from the position shown in full lines in Fig.3 to that shown in dotted lines in said figure.

Means are provided whereby, in the downward swinging of the containerinto dumping position as shown in dotted lines in Fig. 3, power isgenerated by such downward movement, which power acts, when the load hasbeen dumped from the container, to return the container from theposition shown in dotted lines in Fig. 3 to full line As here shown,this power means is in the form of a spring or springs 23 wound aroundthe pin or rod 22, one end of which spring is engaged and held by thebail piece 2|, while the other end extends under the bottom of thecontainer. The spring or springs 23 are powerful enough to hold theempty container in the full line' position shown in Figs. 1 and 3, butare insufllcient to prevent the loaded container from turning downwardon the pin 22 when the hooks l5l5 or other supporting means arepermitted to descend.

Referring now to Figs. 1 and 2, the container is provided atits oppositeends with projecting pins 24-24 which, when the load is to be elevatedand sup rted, are engaged by the hooks l5|5 connect d to the cables 14-.In operation the container is placed upon the ground as shown in dashand dot lines in Fig. 3, and may be readily loaded with any material tobe transported, such as heavy stones, without the necessity of liftingthe stones over any front wall. When the container is to be transported,whether loaded or not, the hooks ii are placed in engagement with thepins 24, and the power mechanism operates to elevate the container alongthe track or way until the bail 2| is automatically engaged by the catch20, and it is then in position to be transported to the point ofdelivery. While the catch 20, as here shown, is an automatic catch ofspecial construction, the use of such catch is not essential, since anysuitable means well known in the art for engaging and holding thecontainer in elevated position may be employed. 7

'With the parts in the position shown in Fig. 1,

.the loaded container may be transported to the position'of delivery.When this point is reached, the power mechanism is operated to releasethe power applied through the cables l4, whereupon the container, withits load, turns downward around hinge pin 22 into the position shown indotted lines in Fig. 3, with the result that the contents of thecontainer are discharged through the open front side thereof. .The ball2| does not participate in this turning movement, but is held by catch20 in the position shown in Figs. 1 and 3. The result of this is thatthe downward turning movement of the container places the spring 23under tension, and as soon as the load is discharged from the containerthe spring automatically returns the container to the normal full lineposition shown in Figs. 1 and 3.

When it is desired to place the container on the ground for loading orother purpose, the retaining catch 20 is released and the powermechanism is actuated to permit the hooks l5 and attached container todescend by its own weight along the track or way until the containerreaches the ground, that is, in the position shown in dash and dot-linesin Fig. 3. Thereupon the hooks 15 are released from the pins 24, and thetruck is then free to pick up and transfer another loaded container.

Having thus described the invention, what is claimed is: v v

1. In a transporting and dumping vehicle, the combination of a track orway, a container having a bottom and end and rear walls and an openfront, a hinge pin around which said container turns to dump itscontents, a bail connected to said hinge pin and extending above theback wall of the container, a spring in operative engagement with saidball and container whereby said,

and rear walls and an open front and top, a.

pin, means pivotally connecting the container to the pin adjacent thelower rear edge of the container, a bail carried by said pin extendingalong and above the rear wall of the container and a spring carried bysaid pin and reacting between the container and the bail and normallyholding the ball against the rear wall of the container- 3. In atransporting and dumping vehicle, the combination of a track or way, acontainer having a bottom and end and rear walls and an open front, thelength of the container transverse of the vehicle being greater than thedistance between the rails of said track or way, means detachablyconnected to the end'walls of saidcontainer for raising and lowering.the container with its back wall sliding along said track or way, meanson said vehicle for holding said container in elevated position, and aspring put under tension by the dumping action of the container andreturning the container to non-dumping position after dumping.

GEORGE R. DEMPSTER.

